6464156222 has 4 divisors (see below), whose sum is σ = 9696234336. Its totient is φ = 3232078110.

The previous prime is 6464156207. The next prime is 6464156243. The reversal of 6464156222 is 2226514646.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2226514646 = 2 ⋅1113257323.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1616039054 + ... + 1616039057.

It is an arithmetic number, because the mean of its divisors is an integer number (2424058584).

Almost surely, 2^6464156222 is an apocalyptic number.

6464156222 is a deficient number, since it is larger than the sum of its proper divisors (3232078114).

6464156222 is a wasteful number, since it uses less digits than its factorization.

6464156222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3232078113.

The product of its digits is 138240, while the sum is 38.

The square root of 6464156222 is about 80399.9765049717. The cubic root of 6464156222 is about 1862.8188097527.

The spelling of 6464156222 in words is "six billion, four hundred sixty-four million, one hundred fifty-six thousand, two hundred twenty-two".